Okay, so while Hollywood is obviously confected, I just wanted to throw in an opinion that the suggestion that people in 90% them don't behave "even remotely like actual humans act" is maybe an overstatement, maybe even hyperbole. I mean, there's usually a
remote resemblance. Sometimes even a reasonable resemblance.
Sometimes it's deliberately entertaining nonsense, sometimes it's constructed so they can tell a story in 2 hours, sometimes it's (as people in the industry are sometimes wont to say) a lie to tell a deeper truth.
But also, there's a unstated assumption that realistic writing is better writing, and to that I would say, well, it depends. On one hand you don't want to lose your audience's willing suspension of disbelief, but on the other, 100% realism could be seen as... well, dull.
Of course, realism is a legitimate genre of film, and if that's your preference, then power to you. But that's stepping into subjective territory.
To get back to QC itself, I wouldn't call the behaviour of QC characters terribly realistic. There's a lot of stuff in QC that is real, for sure. But there are some aspects that are not terribly realistic as well.
Warning blah blah blahThere's certainly a place for extremely realistic fiction, but most people don't actually want to see real life duplicated too closely in art. Real life often fails to be funny, exciting, and/or emotionally moving.
Yeah, as I said, only put somewhat better than I managed.